Patent-Pending Compost Auger System
Whole Compost Through a Sprayer. At Scale.
The Tow and Fert Compost Auger turns solid compost into a pumpable, sprayable slurry. Biology, carbon fines, micro-aggregates, and nutrients all go on, allowing the application of up to 120 hectares of soil building biological inputs per day.
Biology Needs a Home
What Makes a Compost Slurry So Effective
A compost slurry doesn't just deliver microbes. It delivers them with the carbon particles, micro-aggregates, and nutrient complexes they need to establish and thrive once they hit the soil.
Carbon Fines as Microbial Habitat
Fine carbon particles provide food sources and physical habitat for microbes once applied. Biology arrives with the structure it needs to colonise the soil.
Micro-Aggregates for Soil Structure
The small aggregates in compost slurry contribute directly to soil aggregation and structure, supporting water infiltration, root growth, and long-term soil function.
Soluble Nutrients in Context
Humic compounds, nutrient complexes, and soluble organics stay in the slurry. They arrive with the biology, not separated from it.
Whole-Compost Value on the Paddock
More of the original compost ends up where it matters. Biology, carbon, and structure are applied together, not stripped apart.
Long-Term Soil Function
Because you're applying the full spectrum of compost material, the benefits compound over time, supporting carbon cycling, microbial diversity, and nutrient availability.
No Refined Inputs Required
The auger works with real farm compost as it is. No pre-screening, no lab-grade inputs. Just compost, water, and the system.
Get More From Every Tonne of Compost
Solid compost is effective, but it limits how far each tonne goes and how evenly you can apply it. The auger system turns it into a sprayable slurry, so more of the value ends up in the paddock, not the heap.
Whole-Compost Application
Apply biology, carbon fines, micro-aggregates, and soluble nutrients together, not just a filtered liquid.
More Hectares Per Tonne
Spread one tonne of compost across significantly more ground than dry spreading, reducing your per-hectare cost.
120+ Hectares Per Day
Continuous-flow auger creates slurry in real time. No batch brewing, no waiting. Load and go.
Built for Real Compost
No refined inputs required. Works with green waste, vermicast, mushroom compost, and farm blends as they are.
No Blockages
Integrated separation removes only oversized woodchips. The valuable fines and biology stay in the slurry.
Practical Applications that Perform
Farmers report ease of use, improved water retention, and healthier root systems over time.
From Solid Compost to Sprayable Slurry
The auger system creates a pumpable compost slurry in real time. No brewing, no waiting, no refined inputs.
Add Compost
Raw compost is tipped into the specially designed compost auger inside the Tow and Fert sprayer through the top hatch.
It's Washed
The onboard agitation wash beneficial microbes and fines (~5mm) into the water. Biology safe working pressure of 22psi - well under the mortality pressure threshold for living organisms.
Auger Pulls Larger Particles Out
The auger pulls solids and woodchips up through the water washing and moving the clean chip towards the ejection port.
Disposes out the back
The woodchip is ejected out the chute at the rear of the sprayer ready to go back to the compost pile.
Hassle Free Application
The extract is sprayed onto soil, with a living microbe count of approx. 85% of the original material.
Upto 120
Hectares/Day Covered
22 PSI
Operating Pressure (Biology-Safe)
No More
Blocked Booms/Nozzles
~85%
Microbe Mortality Rate
On Farm
Nick Padwick, UK
""We wanted to get compost across the whole farm, not just the paddocks closest to the heap. The auger system turned that into something we could actually do. Same compost, way more coverage, and the biology and carbon are going on together.""
Down from 5000kg
500kg
Spreading Economics
Lower Cost/ha
Applied when needed
Same Day
The Technology
Patent-Pending Continuous-Flow Auger
Designed to turn real farm compost into a sprayable slurry, keeping the biology, carbon, and fines intact.
Continuous-Flow Auger
The auger mechanically mixes compost with water in real time, creating a consistent slurry containing biology, carbon fines, micro-aggregates, and soluble nutrients.
Low-Pressure Application
The entire system operates at a maximum of 22 PSI. That's low enough to keep microbial populations intact through mixing, separation, and spray application.
Coarse Wood Separation
An integrated separation stage removes only oversized woodchips and coarse debris to prevent blockages. The valuable fines stay in the slurry and go onto the paddock.
Product Gallery
Ready to go?
Find Out How the Compost Auger Could Work on Your Farm
Tell us about your operation and we'll come back with a practical assessment. No obligation, no pressure.
- Coverage and application rate guidance for your farm size
- Compost type compatibility assessment
- Cost-per-hectare comparison vs dry spreading
- Flexible finance options
- Scalable and sustainable farming made easy
Two Ways to Get Started
Choose the option that fits your operation. You can always upgrade later.
Integrated Compost Auger
The full compost slurry system. Continuous-flow auger, integrated coarse wood separation, and low-pressure application. Turns solid compost into a sprayable slurry with biology, carbon fines, and nutrients intact.
- Continuous-flow slurry creation
- Up to 120 hectare daily coverage
- Coarse wood separation (fines stay in)
- Low-pressure 22 PSI application
- Fits existing Tow and Fert units
Drop-in Compost Basket
Add compost slurry capability to your existing Tow and Fert unit. A practical way to start applying whole compost through your sprayer without the full integrated auger.
- Fits existing Tow and Fert units
- Lower upfront investment
- Simple to install and use
- Upgrade path to integrated auger
- Suitable for a range of farm sizes
- Acts as strainer/safety cage for catching other debris
Frequently Asked Questions
What exactly is in the slurry?
The auger creates a full compost slurry, not just liquid. It contains the biology, carbon fines, micro-aggregates, humified material, and soluble nutrients from your compost. The only things removed are oversized woodchips and coarse debris that would block spray lines.
How much compost do I need per hectare?
By turning solid compost into a pumpable slurry, you can spread one tonne across significantly more ground than traditional dry spreading. Exact coverage depends on your compost type and application rate, but farmers are consistently covering more hectares per tonne, and that changes the economics of compost use at scale. The increased coverage comes from minimising the losses associated with spreading solid compost - the living organisms in compost are sensitive to UV light and unless wetted into the soil, have considerable losses when broadcasted.
Will the process damage the biology in the compost?
The system is designed to protect biology. The entire platform operates at a maximum 22 PSI. That's low enough to keep microbial populations intact through the auger, separation, and spray stages. You're not forcing compost through high-pressure nozzles.
What types of compost work with the auger?
It's built for real farm compost: green waste, vermicast, mushroom compost, custom blends. You don't need refined or pre-screened inputs. The integrated separation stage removes only oversized woodchips and coarse material to prevent blockages, while keeping the valuable fines and biology in the slurry. To eliminate any doubt contact our sales team who can access the consistency of your compost and advise on optimal application techniques.
What coverage can I achieve per day?
Farmers are covering up to 120 hectares per day with the continuous-flow auger system. Because the slurry is created in real time as you go, there's no batch brewing or waiting. You load compost, and you're applying.
Is there a simpler option to get started?
Yes. The drop-in compost basket fits your existing Tow and Fert unit and lets you start applying compost slurry without the full integrated auger. It's a practical entry point, and you can move to the auger system later if your operation needs it.
Can I retrofit either option into my existing sprayer?
If you have a Multi 4000, you can retrofit both options. For all other machines you can retrofit only the more simple compost basket with minimal adaptations.
Ready to take the hassle out of compost applications?
Talk to us about your farm, your compost, and whether the auger system makes sense for your operation. No pressure, just a practical conversation.
No pressure. No obligation.